Time: Though dark matter is widely accepted, the underdog theory of Modified Newtonian Dynamics, or MOND, recently got a boost from research conducted by astronomy professor Stacy McGaugh. Like many, McGaugh initially wrote the theory off. But eventually, after finding some aspects of dark matter came up short, “I bothered to learn about MOND,” he said. “Many of the more vocal critics choose to remain willfully ignorant.”